Hoisting-hook.



L. J. BLACK.

HOISTING HOOK.

APPLICATION FILED SEPT. a. [914.

1,144,099. Patented June 22, 1915.

rns NoRRIs PETERS cov. WASHINGTON, n. c.

FTQE.

LEE J. BLACK, OF BEAUMONT, TEXAS.

HOISTINGr-HOOK.

Specification of Letters Patent.

Patented June 22, 1915.

Application filed September 8, 1914. Serial No. 860,640.

To all whom it may concern:

Be itv known that I, Lnn J. BLACK, a citi- Zen of the United States,residing at Beaumont, in the county of Jefferson and State of Texas,have invented certain new and useful Improvements in Hoisting-Hooks, ofwhich the following is a specification.

This invention relates to hooks employed for hoisting purposes, and itsobject is to provide a novel and improved safety device which willeffectually prevent the load from accidentally slipping off the hook, orthe hook from becoming detached from the'load.

The invention also hasfor its object to provide a safety device of thekind stated which can be easily and quickly operated.

These objects are attained by means of a combination and arrangement ofparts to be hereinafter described and claimed, reference being had tothe accompanying drawing, in which- Figure 1 is an elevation, partlybroken away, showing the safety device, and Fig. 2 is an edge View ofthe lower portion of the hook showing in dotted lines the safety deviceswung to open position.

I In the drawing, the shank of the hook is shown at 5, and the bill at6. The shank is carried by a clevis or bail 7 to which it is swiveled.The swivel takes care of any twist in the hoisting line to which theclevis is attached, and it also enables the hook to be quickly andeasily rotated to catch into the link or other object in which it isintended to be hooked. A ball-bearing 8 is provided to obtain a freelyrunning swivel.

The safety device is a swinging latch bar 9 carried by a rotatable pin10 passing transversely through the shank 5. The latch bar is made fastto one end of the pin, and to the other end of the pin is made fast ahand grip 11 for rotating the pin and thereby swinging the latch bar toopen or close the hook. The latch bar is located on that side of thehook shank from which the bill 6 projects, and it is of such a lengththat it extends obliquely between the shank and the point of the bill,thus closing up the hook. Upon swinging the latch bar sidewise, awayfrom the bill, the hook is left open to permit attachment to the load.

The hand grip 11 carries a sliding latch bolt 12 for locking the pin 10against rotation when the latch bar 9 is in safety position. The latchbolt is slidably mounted in a transverse recess 13 in the hand grip,said recess opening through that side of the hand grlp which iscontiguous to the hook shank 5, the latter having a keeper aperture 14:into which the forward end of the latch bolt is designed to enter. Tothe rear end of the latch bolt is pivotally connected, as indicated at15, a trigger 16, which latter is pivotally mounted at 17 in a recess 18in the back of the hand grip. The trigger has a projecting part 19 whichextends from the back of the hand grip. A spring 20 is mounted in arecess 21 in the hand grip, and bears against the trigger in such amanner that it tends to swing the same in a direction to shoot the latchbolt forward into the keeper aperture. The part 19 now projects from theback of the hand grip, and upon taking hold of the latter and pressingagainst the part 19, the trigger swings in a direction to retract thelatch bolt. The pin 10 is now unlocked and free to be rotated, and upongiving the hand grip a twist sidewise, the pin is rotated, and the latchbar 9 is swung away from the bill of the hook to open the same. Byreversing this operation, the latch bar is swung back to close the hook.

The hook can be easily and quickly applied or detached, and when thelatch bar is in closing position an efficient and reliable safety deviceis had. The natural position of the operator, as the hook comes down tounhook or to hook on, as the case may he, would be for him to catch thehook by the hand grip and to squeeze the latter. The hand would thenpress against the part 19, which unlocks the pin 10 as hereinbeforedescribed. Thus, the safety device can be easily operated with one hand,and without any waste of time.

I claim:

1. The combination with a hoisting hook comprising a shank and a billextending beyond one side thereof, of a hand grip on the other side ofthe shank, a rotatable pin passing transversely through the shank, toone end of which pin the hand grip is rigidly connected, and a latch barrigidly carried by the other end of the pin and adapted to extendbetween the shank and the bill of the hook.

2. The combination with a hoisting hook, of a safety device comprising aswinging latch bar extending between the shank and the bill of the hook,a rotatable pin passing transversely through the hook shank and carryingat one of its ends the aforesaid latch bar, a hand grip connected to theother end of the pin for rotating the same, and a latch bolt carried bythe hand grip, the hook having a keeper for said latch bolt.

3. The combination with a hoisting hook, of a safety device comprising aswinging latch bar extending between the shank and the bill of the hook,a rotatable pin passing transversely through the hook shank and carryingat one of its ends the aforesaid latch bar, a hand grip connected to theother end of the pin for rotating the same, a latch bolt carried by thehand grip, the hook having a keeper for said latch bolt, and meanscarried by the hand grip for operating the latch bolt.

4. The combination with a hoisting hook, of a safety device comprising aswinging latch bar extending between the shank and the bill of the hook,a rotatable pin passing transversely through the hook shank and carryingat one of its ends the aforesaid latch bar, a hand grip connected to theother end of the pin for rotating the same, a latch bolt carried by thehand grip, the hook having a keeper for said latch bolt, and meanscarried bythe hand grip for operating the latch bolt, said operatingmeans having an actuating part projecting from the hand grip. V

5. The combination with a hoisting hook,

of a safety device comprising a swinging latchbar extending between theshank and the bill of the hook, a rotatable pin passing transverselythrough the hook shank and carrying at one of its ends the aforesaidlatch bar, a hand grip connected to the other LEE J. BLACK.

Witnesses C. H. SAoNDnRs, H. J. 'WHITAKER.

Washingtomhfi. ,c

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